Home / 6,905.69-10,351.37-3,937.80

Finding the Fourth Proportional to 6,905.69, 10,351.37 and 3,937.80

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Solution

The fourth proportional to 6,905.69, 10,351.37 and 3,937.80 is: 5,902.62

Step by Step Solution

  1. Step 1: Write the proportion equation
    6,905.69 : 10,351.37 = 3,937.80 : x
  2. Step 2: Convert to fraction form
    6,905.69/10,351.37 = 3,937.80/x
  3. Step 3: Cross multiply
    6,905.69x = 10,351.37 × 3,937.80
  4. Step 4: Simplify right side
    6,905.69x = 40,761,634.63
  5. Step 5: Solve for x
    x = 40,761,634.63/6,905.69
  6. Step 6: Final answer
    x = 5,902.62

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1.5x scale

Why These Related Problems?

These problems maintain the same ratio (1.50) or explore similar proportional relationships. Practicing with related ratios helps build understanding of proportional relationships.